6 month old price. It's very possible to get for 0.22 ref, and the 0.22 ref sellers aren't selling them too quickly. Many 0.33 ref sellers are unsuccessful.

Buying for 0.22 ref

http://www.tf2outpost.com/trade/2776426 Many adds

Selling for 0.22 ref

http://www.tf2outpost.com/trade/11312492 6 days

http://www.tf2outpost.com/trade/11465299 1 day

http://www.tf2outpost.com/trade/11482445 1 day

http://www.tf2outpost.com/trade/11494096 <1 day

Sold for 0.33 ref

http://www.tf2outpost.com/trade/10731942

http://www.tf2outpost.com/trade/11257085

http://www.tf2outpost.com/trade/11362977

http://www.tf2outpost.com/trade/11407962

http://www.tf2outpost.com/trade/11443780

Not sold for 0.33 ref

http://www.tf2outpost.com/trade/11320512 6 days

http://www.tf2outpost.com/trade/11366143 5 days, willing buyer

http://www.tf2outpost.com/trade/11367385 5 days

http://www.tf2outpost.com/trade/11374164 4 days

http://www.tf2outpost.com/trade/11393852 4 days

http://www.tf2outpost.com/trade/11416648 3 days

http://www.tf2outpost.com/trade/11420251 3 days

http://www.tf2outpost.com/trade/11441743 2 days, added

http://www.tf2outpost.com/trade/11443473 2 days

http://www.tf2outpost.com/trade/11448288 2 days

http://www.tf2outpost.com/trade/11453691 2 days

http://www.tf2outpost.com/trade/11459253 2 days

http://www.tf2outpost.com/trade/11473595 1 day

http://www.tf2outpost.com/trade/11477832 1 day

http://www.tf2outpost.com/trade/11483737 1 day

http://www.tf2outpost.com/trade/11487516 1 day

http://www.tf2outpost.com/trade/11497245 <1 day

http://www.tf2outpost.com/trade/11513345 <1 day

http://www.tf2outpost.com/trade/11513969 <1 day

http://www.tf2outpost.com/trade/11514612 <1 day